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| n | a(n) |
|---|---|
| 1 | 51 |
| 2 | 1867 |
| 3 | 41046 |
| 4 | 721939 |
| 5 | 13265123 |
| 6 | 261676376 |
| 7 | 5206684654 |
| 8 | 102053610873 |
| 9 | 1987295524193 |
| 10 | 38770223731701 |
| 11 | 758012281434166 |
| 12 | 14822685184195262 |
| 13 | 289709710098420174 |
| 14 | 5661329642092072222 |
| 15 | 110637907561833470425 |
[51,1867,41046,721939,13265123,261676376, 5206684654,102053610873,1987295524193, 38770223731701,758012281434166,14822685184195262, 289709710098420174,5661329642092072222, 110637907561833470425] |